JP2774073B2 - Vacuum cleaner suction port - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner for cleaning by sucking foreign matter such as dust by suction force caused by the operation of a driving means, and more particularly to a noise generated by inflow of suction air in a suction port and a driving motor. The present invention relates to a suction port body for a vacuum cleaner, which minimizes noise generation by absorbing and attenuating noise generated from the vacuum cleaner.

[0002]

2. Description of the Related Art As shown in FIG. 1, a conventional vacuum cleaner is provided with a driving means 2 for generating a strong suction force in a main body 1, and is provided on the other side by the operation of the driving means 2. A dust collecting part 3 for storing foreign substances such as dust sucked by suction force is formed. A suction pipe 4, a handle 5 and an extension pipe 6 are sequentially connected to one side of the dust collecting part 3.

[0003] Further, a connecting pipe 7 is rotatably connected to a tip of the extension pipe 6 at a predetermined angle, and a lower surface of the connecting pipe 7 contacts a floor surface at a predetermined interval. And
A suction port 8 for sucking foreign matter such as dust by suction force by the operation of the driving means 2 is connected.

Accordingly, when a strong suction force is generated by the operation of the driving means 2 mounted in the main body 1, foreign matter such as garbage is sucked through the suction port body 8, and at this time,
The foreign matter sucked into the suction port body 8 is sucked through the connecting pipe 7, the extension pipe 6, the handle 5 and the suction pipe 4, and then only the foreign matter such as dust is collected in the dust collecting part 3, Dust collection unit 3
The purified air that has passed through is discharged into the atmosphere.

In the vacuum cleaner as described above, since the driving means 2 and the suction port 8 are noise sources for generating noise, countermeasures against this are extremely serious.

As shown in FIG. 2, a vacuum cleaner proposed to solve the above problem has a suction passage 8a through which dirt and air are sucked inside a suction opening 8, as shown in FIG. A connecting pipe 7 rotated at a predetermined angle is connected to one side of the connecting pipe 8. The connecting pipe 7 allows foreign substances such as dust to be sucked into the suction passage 8 a by a suction force generated by the operation of the driving means. Start cleaning.

In the conventional vacuum cleaner as described above, when foreign matter and air sucked into the suction passage 8a by the suction force generated by the operation of the driving means flow into the inside of the connecting pipe 7 having a small inner diameter. The problem is that not only intense noise is generated due to the turbulent flow of air formed in the vehicle, but also the noise generated from the driving means is transmitted to the suction port body 8 and the generation of noise is extremely large. It was implicit.

[0008]

As a result, as shown in FIG. 3, the silencer 9 is inserted inside the extension pipe 6 connected to the suction port body 8 and the silencer 9 is inserted inside the extension pipe. Inserting the supplementary material 9a to maintain the shape of the suction passage 8a
Japanese Patent Publication No. Sho 62-62 describes a vacuum cleaner that reduces noise by effectively absorbing the noise caused by the air and the like sucked into the air.
No. 36690 discloses that the noise generated from the suction port body 8 can be transmitted to the main body side to some extent, but the absorption of the intense noise generated from the suction port body is extremely low. In addition to being sufficient, the noise generated from the driving means in the main body is also transmitted to the suction port body, causing a problem of generating noise.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned various problems of the prior art, and it is an object of the present invention to provide a method for operating a drive means and a noise generated by the inflow of air into a suction body. It is an object of the present invention to provide a suction port of a vacuum cleaner that absorbs noise generated by the vacuum cleaner and minimizes the generation of noise, and operates quietly during cleaning.

[0010]

SUMMARY OF THE INVENTION A vacuum cleaner according to the present invention, which has been made to achieve the above object, has a vacuum cleaner for sucking foreign matter such as dust into an inlet through a suction input by operation of a driving means for cleaning. In the machine, the suction port 13 has a lower surface
Floor plate 11 formed in a part of
On both sides in the direction, by air sucked from the suction port 13
Floor plate 1 filled with first sound absorbing material 18 for sucking generated noise
1, a fixing plate 19 fastened with screws so as to fix the first sound absorbing material 18 in the floor plate 11,
A connection pipe 21 disposed at a central portion, wherein the floor plate 11
Wherein a connecting pipe 21 and the second sound absorbing material 24 is filled on both sides in the width direction of absorbing the noise caused by the air that flows from the suction port 13 is bored a plurality of sound-absorbing holes 22a of, and, prior to
Sound absorbing plates 22 arranged on both sides in the width direction inside the connecting pipe 21
And a third sound absorbing member 26 for absorbing noise generated from the floor plate 11 is attached to the bottom surface, and
The cover plate 12 and a plurality of sound absorbing holes 27a are drilled, and are fixed by fastening means 20a to the cover plate 12 so that air and noise can easily flow through the sound absorbing holes 27a. Fixed plate 27,
The noise generated at the time of inhaling air and the noise generated from the driving means are eliminated by the first sound absorbing material, the second sound absorbing material, and the third sound absorbing material formed on the upper and lower sides of the inlet body and on both sides of the connecting pipe, thereby reducing noise. It is characterized in that the generation is minimized and the cleaning operation is performed extremely quietly.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described in detail along the lines 7 through 7. In the figure, reference numeral 10 is
2 shows a suction port body in which a lid plate 12 is connected to an upper side of a floor plate 11.

The floor plate 11 has a suction port 13 formed on a low surface thereof for sucking dust and air.
A brush roll 14 for adsorbing and inhaling foreign matter such as dust by a rotation operation is rotatably installed in the wheel 3. Wheels 15a, 15 are provided on both sides of the floor plate 11 so as to be easily moved for cleaning. 15b is rotatably connected.

Further, a plurality of bosses 16 are provided on both sides of the floor plate 11 and a plurality of through holes 17a are formed on one side wall of the boss 16 to allow air to flow therethrough. Each of the chambers 17 is formed, and the sound absorbing chamber 17 is filled with a first sound absorbing material 18 for absorbing and attenuating noise generated by inflow of air during cleaning.
A fixing plate 19 is located above the first sound absorbing material 18.
The fastening means 20 such as a screw is fixed by being fastened to the boss portion 16.

On the other hand, a pair of guide grooves 11a are formed at substantially the center of the floor plate 11, and the guide grooves 11a
A connecting pipe 21 for sucking and guiding dust and air sucked from the suction port 13 is rotatably connected to the inside by a predetermined angle.

The connection pipe 21 is provided at one side with the suction port 13.
Opening 21 through which refuse and air sucked into the air are introduced
As shown in FIG. 6, a sound absorbing plate is formed with a plurality of sound absorbing holes 22a whose diameters are gradually reduced outward so that air and noise can easily flow in, as shown in FIG. 22 are integrally formed, and the sound absorbing plate 22
A hinge shaft 23, which is seated in the guide groove 11a, projects from the center of the guide groove 11a.

Further, the outside of the sound absorbing plate 22 is filled with a second sound absorbing material 24 for absorbing and attenuating noise generated by the turbulent flow of the air sucked into the opening 21a. A coupling member 25 for preventing the second sound absorbing material 24 from being detached is tightly inserted.

On the other hand, a third sound absorbing material 2 for absorbing and attenuating noise in the suction port body 10 is provided on the bottom surface of the lid plate 12.
The third sound absorbing member 26 is fixed to a fixing plate 27 having a plurality of sound absorbing holes 27a formed thereon by fastening means 20a such as screws .

The first sound absorbing member 18, the second sound absorbing member 24, and the third sound absorbing member 26 are preferably formed of a porous material such as sponge or glass fiber having a noise damping effect.

Next, the operation and effects of the vacuum cleaner according to the present invention configured as described above will be described.

First, when a strong suction force acts on the suction port body 10 by the operation of a driving means (not shown), cleaning is performed while moving the suction port body to the floor where cleaning is to be performed.

Next, foreign matter such as dust adsorbed on the surface of the brush roll 14 rotating on the floor is separated into the opening 21a of the connecting pipe 21a and sucked, so that cleaning is performed. become.

At this time, the suction air flowing into the connecting pipe 21 from the suction port 13 generates noise by reducing the diameter of the pipe, and this noise is generated in the suction port body 10. While being propagated in each direction, the sound is attenuated in the first sound absorbing material 18, the second sound absorbing material 24, and the third sound absorbing material 26, and the generation of noise is minimized.

That is, the noise generated from the entrance side of the connecting pipe 21 is transmitted to the through hole 17 a formed on one side of the sound absorbing chamber 17.
Disappears after flowing into the first sound absorbing material 18 through
The noise propagated to the upper side is eliminated after flowing into the third sound absorbing member 26 through the plurality of 27a formed on the fixing plate 27, and is generated when the intake air flows into the connection pipe 21. Is the second sound absorbing material 2 through the sound absorbing hole 22a.
The noise is minimized by being extinguished after having flowed into the interior 4.

Further, the noise generated by the driving means for generating the absorbing force is also effective by the first sound absorbing material 18, the second sound absorbing material 24 and the third sound absorbing material 26 while flowing into the connecting pipe 21 and the suction port body 10. As a result, the cleaning operation is performed in a quieter state.

The diameter of the sound absorbing hole 22a formed in the sound absorbing plate 22 is gradually reduced toward the second sound absorbing material 24, so that noise can easily flow in and the noise can be eliminated. It will be done more smoothly.

[0026]

As described above, according to the vacuum cleaner of the present invention, the noise generated at the time of inhaling air and the noise generated by the driving means are formed on the upper and lower sides of the suction port body and on both sides of the connecting pipe. By being eliminated by the sound absorbing material, the second sound absorbing material, and the third sound absorbing material, various effects are obtained, such as minimizing noise generation and performing an extremely quiet cleaning operation. In particular, each sound-absorbing material must be
The sound plate must be firmly fixed via fastening means.
And the second sound absorbing material is provided on both sides of the connecting pipe.
Based on the fact that the sound absorbing material is securely held to absorb noise
In addition to ensuring that
Make full use of the function of vacuum cleaner without disturbing
There is an effect of obtaining.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a conventional vacuum cleaner according to the present invention.

FIG. 2 is a partial longitudinal sectional view showing an example of a suction port body applied to a conventional vacuum cleaner.

FIG. 3 is a partial longitudinal sectional view showing another example of a suction port body applied to a conventional vacuum cleaner.

FIG. 4 is an exploded perspective view showing a suction port of the vacuum cleaner according to the present invention;

FIG. 5 is a cross-sectional view illustrating a suction port of the vacuum cleaner according to the present invention in a coupled state.

FIG. 6 is a longitudinal sectional view showing a combined state of a suction port of the vacuum cleaner according to the present invention;

FIG. 7 is an enlarged sectional view of a main part of the present invention.

[Explanation of symbols]

 Reference Signs List 10 suction port body 11 floor plate 12 lid plate 13 suction port 16 boss 17 sound absorbing chamber 17a through hole 18 first sound absorbing material 21 connecting pipe 22 sound absorbing plate 22a sound absorbing hole 24 second sound absorbing material 26 third sound absorbing material

Claims (3)

(57) [Claims] 1. A vacuum cleaner in which a foreign substance such as dust is sucked into a suction port for cleaning by suction input by operation of a driving means, wherein the suction port 13 is a floor plate 11 formed on a part of a lower surface.
Therefore, on both sides in the width direction inside,
First sound absorbing material for sucking noise generated by air to be sucked
18, a fixing plate 19 fastened by screws so as to fix the first sound absorbing material 18 in the floor plate 11, and a connecting pipe 21 arranged at a substantially central portion of the floor plate 11.
Te, and the intake port 13 connecting pipe 21 to the second sound absorbing material 24 was filled in the widthwise <br/> side for absorbing noises caused by the air that flows from the floor plate 11, a plurality of sound-absorbing holes 22a And the connecting pipe 21
A sound absorbing plate 22 disposed on both sides in the width direction of the inside, and a third sound absorbing material 26 for absorbing noise generated from the floor plate 11
Together they are attached to the bottom surface, and forming on the upper side of the floor plate 11
A lid plate 12 to be combined and a plurality of sound absorbing holes 27a are formed, and fastening is performed by fastening means 20a to the lid plate 12 so that air and noise can easily flow through the sound absorbing holes 27a. A suction body for a vacuum cleaner, comprising a fixing plate 27. 2. A sound absorbing chamber 22 is formed on both sides of the connecting pipe 21, and a plurality of sound absorbing holes 22a whose diameters gradually decrease toward the second sound absorbing material 24 are formed in the sound absorbing chamber 22. The suction body of a vacuum cleaner according to claim 1, wherein: 3. The floor plate 11 has a plurality of bosses 1 on both sides.
6. A pair of sound absorbing chambers 17 having a plurality of through holes 17a formed around the boss portion 16 so as to allow air to flow therethrough. Inlet body of vacuum cleaner.